Graduates toss their caps in the air at the conclusion of the commencement ceremony for the U.S. Naval Academy Class of 2015 in Annapolis, Maryland on Friday
Workers clean up an oil slick along the coast of Refugio State Beach in Goleta, California, United States on Wednesday. A pipeline ruptured along the scenic California coastline on Tuesday, spilling some 21,000 gallons (79,000 liters) of oil into the ocean and on beaches before it could be secured
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Investigators and first responders work near the wreckage of Amtrak Northeast Regional Train 188, from Washington to New York, that derailed yesterday on Wednesday in north Philadelphia, Pennsylvania
US President Barack Obama and Japanese Prime Minister Shinzo Abe attend official welcoming ceremonies on the South Lawn of the White House in Washington, DC on Tuesday
The Empire State Building is lit in red and purple in New York as part of efforts to bring attention to the 219 missing Nigerian schoolgirls kidnapped by Boko Haram a year ago.
A worker lowers himself from a scaffold in front of a Hillary Clinton sign near her campaign headquarters in the Brooklyn borough of New York on Tuesday
Fans listen to David Guetta at the Coachella Valley Music and Arts Festival in Indio, California.
A woman does acrobatics as she waits for a band to start playing at the Coachella Valley Music and Arts Festival in Indio, California.
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Construction workers begin demolition of a swimming pool at an apartment complex in Hayward, California as the state enters its fourth year of drought. Some residents are having their pools removed as they face a mandatory 25% reduction in water use.
Protester pauses by a glass memorial on the spot where Charly Leundeu Keunang, 43, was shot by police on skid row, during a march to commemorate the more than 617 people they say have been killed by law enforcement in LA County since 2000
US Secretary of State John Kerry looks at the view of Lake Geneva from his hotel room as the Iran nuclear talks continue, in Lausanne, Switzerland.
Aubrey Gemignani/NASA via Getty Images
the United Launch Alliance Atlas V rocket with NASA’s Magnetospheric Multiscale (MMS) spacecraft onboard launches from the Air Force Station Space Launch Complex 41 in Cape Canaveral, Florida. NASA’s MMS mission will study how magnetic fields around Earth connect and disconnect, explosively releasing energy via a process known as magnetic reconnection. MMS consists of four identical spacecraft that work together to provide the first three-dimensional view of this fundamental process, which occurs throughout the universe.
Police remove a protester holding a sign as US Secretary of State John Kerry testifies at a Senate Foreign Relations Committee hearing on “The President’s Request for Authorisation to Use Force Against Isis: Military and Diplomatic Efforts” on Capitol Hill in Washington on Wednesday
The moon sets in the early morning hours as a man walks along an ocean pier in Oceanside, California on Thursday
Anti-Zionist ultra-orthodox Jews of the Naturei Karta movement hold signs outside the Washington Convention Centre where Israeli Prime Minister Benjamin Netanyahu addressed the American Israel Public Affairs Committee (AIPAC) policy conference in Washington, DC, on Monday
An ice covered statue is seen in Lafayette Square on Monday in Washington, DC
Pedestrians make their way along a snow-covered street during a storm in Cambridge, Massachusetts. Boston and other areas of the Northeast are braced for more snow.
An aeroplane flies past the rising moon in its waning gibbous stage as viewed from Jersey City, New Jersey. The statue known as Civic Fame, bottom left, which stands on the Manhattan Municipal Building in New York, is also visible.
Protesters listen during a hearing of the Senate Armed Services Committee on Capitol Hill on Thursday in Washington, DC. Witnesses testified about the use of the Guantanamo Detention Facility in Cuba and US detention policy
Gene J. Puskar/AP
Groundhog Club handler Ron Ploucha holds Punxsutawney Phil, the weather prognosticating groundhog, during the 129th celebration of Groundhog Day on Gobbler’s Knob in Punxsutawney on Monday